Verb
protest too much (third-person singular simple present protests too much, present participle protesting too much, simple past and past participle protested too much)
(idiomatic) To insist so passionately about something that people suspect the opposite of what one is saying.
Methinks she doth protest too much………. Source: Internet
Me thinks thou doth protest too much. Source: Internet
Thou doth protest too much! Source: Internet